10989637 has 4 divisors (see below), whose sum is σ = 11368620. Its totient is φ = 10610656.

The previous prime is 10989617. The next prime is 10989659. The reversal of 10989637 is 73698901.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 73698901 = 3271 ⋅22531.

It can be written as a sum of positive squares in 2 ways, for example, as 4198401 + 6791236 = 2049^2 + 2606^2 .

It is a cyclic number.

It is not a de Polignac number, because 10989637 - 2⁷ = 10989509 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10989593 and 10989602.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10989617) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 189448 + ... + 189505.

It is an arithmetic number, because the mean of its divisors is an integer number (2842155).

Almost surely, 2^10989637 is an apocalyptic number.

It is an amenable number.

10989637 is a deficient number, since it is larger than the sum of its proper divisors (378983).

10989637 is an equidigital number, since it uses as much as digits as its factorization.

10989637 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 378982.

The product of its (nonzero) digits is 81648, while the sum is 43.

The square root of 10989637 is about 3315.0621411974. The cubic root of 10989637 is about 222.3281473995.

The spelling of 10989637 in words is "ten million, nine hundred eighty-nine thousand, six hundred thirty-seven".